The teaser for Gu Family Book is finally here! The teaser briefly shares the family background of Choi Kang Chi (Lee Seung Gi), how he came to be adopted by a Joseon official and eventually grows up to be a martial arts student alongside Dam Yeo Wool (Suzy). Choi Kang Chi's parents are introduced and their tragic love story is revealed. As for Lee Seungi and Suzy, it's fight scenes for now. Watch the trailer here: Will you be watching this new drama? (Source: